A cqbpobation of massa



Get. 22, 1929.

G. D. GOODSPEED STOP MOTION FOR LOOMS Filed Sept. 18. 1926 2 Sheets-Sheet 1 @i2/ o WFS?" i L// T a n fdiw Oct. 22, 1929. G. D. Go'oDsPEED 1,732,809

STOP MOTION FOR LOOMS Filed Sept. 18. 1926 2 ,Sheets-Shen 2 l 1L.. ""llll u f6 Ilvl l fg ||I Iii accessible for the loom attendant, and a rearwardly extending arm 31 the purpose of which will later appear. Gn that end of the rock shaft 29 beyond the left hand side frame. member 2 is a second handle arm 32 so that said rock shaft may be manipulated from the associated side of the machine when so necessary. It is apparent that when either handle arm is operated to rock the sha-ft 29, the member 21 on the power shaft ma be engaged or disengaged from the clutch member 18 so that said power shaft may be operatively connected to and disconnected from the motor 19.

Near the front end of the power shaft is fixed an eccentric 33 for actuating the shuttlc and also fixed on said shaft is a rearwardly facing bevel gear 34 which meshes with an other bevel gear 35 on the adjacent end of the main drive shaft 36 which extends transversely of and is j ournalled at its ends in suitable bearings provided therefor on said right and left hand frame members. On the opposite end of the drive shaft, is secured a bevel pinion 37 which meshes with a similar pinion 38 loose on a shaft 3S) arranged parallel with and journalled in bearings on the left hand side member 2. A. clutch member 40 splined on the shaft 39 may be operatively connected to and disconnected from the gear33 wheren by the driving action on the shaft 39 may be determined. by means of a foot treadle 41 at the forward end of said side frame member. Connected to the forward end the shaft 3) is suitable worm and spur gearing 42 for driving the take up roll 16.

On the forward end of the right hand frame member 1 is mounted an upright solenoid or magnet 43 the core of which includes a depending` stem 44, the bottom end of which is connected by a suitable joint to the arm 31 of the Y shaped lever 28 before mentioned. -When said solenoid is energized, the stem 44 is moved upwardly against the action of a spring 45 at the top end of the solenoid, and through the lever 2S, rod 26 and arms 25 and 23 will disengage the clutch parts 21 and 16 and disconnect the power shaft 17 from the motor.

On the left hand frame member 2, forwardly of the plane of the magazine is an upstanding bracket 46 which carries a fixed contact 47. Associated with said fixed contact is a movable contact 48 carried on the forward end of a longitudinal bar 49, said contacts being suitably connected up by `conductors 50 and 51 wit-li the solenoid 43. Thejcontact bar 49 is arranged above and is parallel with the front end portion of the left hand frame me`mber 2 and extends across the plane of the stakes 6 the inner ends of vwhich are arranged one above another in the magazine 13 before mentioned. Suitable means are provided on the under side of the magazine to project the bottommost stake to short distance inwardly beyond the planes of the associated frame member 2 and contact bar 49 and said means is actuated in timed relation with the shuttle and is driven by a chain 53 (only a fragment of which is shown in Fig. 2) trained about a sprocket 54 on the shaft 39.

The rear end of the contact bar is pivoted to the offset inner end portion 55 of the trans versely arranged top end part 56 of a vertically reciprocablerod 57 having sliding guiding` bearing in top and bottom brackets 58 and 59 fixed to and projecting laterally from the frame member 2. On said inner offset portion 55 is a lip 60 which projects under the contact bar 49 so as to support and lift the contact bar, when the rod 57 is moving upwardly under the action of an expansion spring 61 interposed between the bracket 58 and the transverse top end part 56 of said rod. The bottom end of the rod 57 carries a laterally extending roller 62 adapted to be yieldingly held against the under side of an eccentric 63 on the shaft 39. In said upright rod is provided a turn buckle 64 by which the proper length of said rod may be accurately determined.` The operation of said rod and stake projecting means associated with the magazine are so correlated that the spring 61 causes said rod 57 to move upwardly (as the low side of the eccentric 63 approaches the roller 62,) just prior to the operation of the stake projecting means associated with the magazine. In the upward movement of the said rod, the lip on the end portion 55 of the top end part 56 engages the bottom edge of said contact bar and causes said bar to move upwardly with the rod 57 so said contact bar is temporarily positioned above the plane of the bottommost stake 6a to be projected from the magazine so as to permit the free projection of said stake into the position ready to be grasped by the shuttle. After the stake has thus been projectcd the rod 57 starts to move downwardly (under the action of the cam 63) so that the lip 60 becomes disengaged from the under side of the contact bar 49 whereby the free end of said bar is now supported upon the projected end of the stake.

.Should the stake projecting means associated with the magazine fail for any reason to so project the stake, the support normally afforded the contact bar by the projected stake end will be lacking and the bar will fall or swing by gravity, bringing the contact 48 into engagement with the ixed contact 47. With the contacts thus engaged the circuit through the conductors 50+51 is closed to energize the solenoid 43. l/Vhen the solenoid is thus energized, its armature stem 44 is moved upwardly, thus rocking the Y` shaped lever 23, which through the shift rod 26 and' arms 23 and 25 disengages the clutch parts 21 and 18 so that the operation of the loom is stopped.

After the cause for the stopping of the loom has been rectified, the loom may again be started into operation by lifting upwardly, either handle lever 30-32, thus bringing the clutch parts 18 and 2l into operative engagement.

lily improved stop motion is simple in construction and positive in operation and the parts thereof are so made and corelated that they cannot readily get out of order.

lVhile in describing my invention, I have referred to certain details of construction, as well form and arrangement of the parts thereof, l do not wish to be limited thereto except as may be pointed out in the appended claims.

l claim as my invention l. A stop motion for a stake and strand reed fabric weaving loom embodying a maga- Zine from which a stake projects, means norir-ally engaging the stake and movable in one direction into the plane of the stake in the absence thereof and movable in the other din rection away from said plane upon insertion of another stake, and electrical means for controlling the operation of the loom, said first mentioned means operating` in the absence of the stake for changing the condition of said electrical means which operates to stop the loom.

2. A stop motion for a stake and strand reed fabric weaving loom embodying a magazine, from which a stake projects, means normally engaging the stake and movable in one direction into the plane of the stake in the absence thereof and movable in the other direction away from said plane upon insertion of another stake, and electrical means including an open circuit for controlling` the operation of the loom, said first mentioned means operating in the absence of a stake to move in the plane thereof to close said circuit and cause said electrical means to stop the operation of the loom.

il. A stop motion for a stake and strand reed fabric weaving loom embodying a maga'- Zine from which a stake projects` electrical means for controlling the operation of the loom, a pair of contacts arranged in the circuit of said electrical means and an arm carrying` one of said contacts and normally engaged with the stake and movable into the plane of the stake upon absence of the same to change the relative normal position of said contacts and the conditions of said electrical means to cause the same to stop the loom.

4i. A stop motion for a stake and strand reed fabric weaving loom embodying therein, a stake magazine from which stake is adapted to be projected prior to withdrawal, power means for driving the loom including a clutch mechanism, electrically actuated means operatively connected to the clutch mechanism and contact members arranged in circuit with said electrically actuated means, one of said contact members normally engaging upon and being held out of engagement with the other by the projected stake.

5. A stop mot-ion for a stake and strand reed fabric loom embodying therein a stake magazine from which a. stake is adapted to be projected, a drive shaft for the loom including a clutch mechanism, electrically actuated means operatively connected to the clutch mechanism, a fixed contact and a movable Contact connected in circuit to said electrically actuated means, said movable Contact member normally engaging upon and being held out of engagement with the fixed Contact member by the stake projected from the magazine.

6. A stop motion for a stake and strand reed fabric weaving loom embodying therein, a magazine from which a stake is adapted to be projected, a drive shaft including a clutch mechanism, a second shaft driven thereby, electrical means including coacting contact members for controlling the operation of said clutch mechanism, an arm carrying one of said contact members, and normally engaged with the projected stake, and a rod vertically reciprocated by said second shaft and connected to said arm said rod operating to hold said arm in an elevated position to permit the lprojection of the stake.

7. A stop motion for a stake and strand reed fabric weaving loom embodying a support for a stake, electrical means for controlling the operation of the loom and including an arm normally engaged with the stake and movable into the plane of the same in the absence of the stake from said support, said arm acting in said movement to change the electrical condition of said means so that it operates to stop the loom.

8. A stop motion for a stake and strand reed fabric weaving loom embodying a support for a stake, a drive shaft for the loom including a clutch mechanism, electrically actuated means operatively connected to the clutch mechanism, a fixed Contact and a movable contact connected in circuit to said electrically actuated means, said movable contact member being normally held out of engagement with the xed contact member by the stake when on said support.

9. A stop motion for a stake and strand reed fabric weaving loom embodying therein a support for a stake, an arm arranged transversely of the stake and normally engaging thereon, a contact carried by one end of said arm, a. fixed contact with which the first contact is adapted to engage, and means engaged with the other end of said arm for rocking it in one direction about the stake as a fulcrum when Said means are movable in one direction, said means acting in the absence of said stake to permit the arm to have a limited swinging movement independently of said means to permit said contacts to engage each other.

l0. A stop motion for a. stake and strand reed fabric Wea-ving loom embodying therein a support for the stake, an arm arranged transversely of the stake and normally engagging' thereon, a contact carried by one end of said arm, a fixed contact with which the first contact is adapted to engage, a reciprocating member, means connecting the last mentioned end of said arm to said recipro eating` member to impart movement to said arm when said member is moving` in one direction and permitting a limited independent movement of the arm when said member is moved in the other direction to permit said Contact on the iirstmentioned end ot the arm to engage the fixed contact.

ll. ln a stop motion of the kind described, a vertically reciprocating member, an arm secured to the top end thereoiand having a lip at its free end and a contact carrying lever pivoted at one end to said arm at a point spaced from said lip, said lip acting4 when said member is reciprocating in one direction to carry said lever therewith and when reciprocating in the other direction permitting a limited independent movement between said arm and lever.

12. In a stop motion of the kind described, a vertically reciprocating roe, a support in which said rod is slidable,` an L shaped member fixed to the top end of said rod and includingI a laterally extending4 arm with a lip at its free end, a guide on said support for said arm and a contact lever pivoted at one end to that end of said laterally extending arm at a point spaced from said lip, said lip acting in one direction of movement of said rod to carry said Contact lever with it and in the other direction of movement of said rod to permit a limited swinging movement of said contact lever.

In testimony whereof, .l have hereunto set my hand, this 13th day ot September, 1926. GEORGE D. GOODSPEED. 

